* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    font-weight: 520;
    font-family: 微软雅黑;
}

#nav {
    margin-top: -45px;
    width: 100%;
    height: 100px;
    background-color: #191B2A;
}

#nav>ul>li {
    float: left;
    width: 150px;
    height: 50px;
    text-align: center;
}

#nav>ul>li>a {
    text-align: center;
    line-height: 50px;
    font-size: 15px;
    color: black;
}

#nav>ul>li>a:hover {
    color: orange;
    font-size: 20px;
}

ul>span {
    float: left;
    line-height: 50px;
    color: rgb(225, 224, 224);
    font-weight: 800;
    text-shadow: 5px 5px 5px black;
    color: red;
    font-size: 30px;
}
#nav>ul>li>a {
    color: white;
}
.sp{
    float: right;
    margin-right: 20px;
}
.sp >span{
    font-size: 20px;
    color: white;
}